The Roof Structure window allows users to modify parameters for each roof structure bay.
The Roof Structure window is separated into different areas, General Design Parameters, Bracing Parameters, Total Weight, Rafter Calculations, Girder Calculations, Column Calculations, and Commands.
General Design Parameters Area #
The General Design Parameters area includes the following data:
Mount Radius – Specifies column’s mount radius.
Column Qty – Specifies column quantity.
Rafter Qty Per Girder act. – Specifies the rafter’s actual quantity per girder.
Rafter Qty Per Girder req. – Displays rafter required quantity per girder.
Rafter Qty Per Bay act. – Displays the rafter’s actual quantity on the bay.
Rafter Qty per Bay req. – Displays rafter required quantity per bay.
Rafter Radius, Inside – Displays rafter inside radius.
Rafter Radius Outside – Displays rafter outside radius.
Bracing Parameters Area #
The Bracing Parameters area includes the following data:
Bracing Qty act. – Specifies bracing actual quantity.
Bracing Qty req. – Displays bracing required quantity.
Bracing Type – Specifies bracing type. It supports two types: Type I (Structural member), and Type II (Bar).
Bracing Length/Type – Specifies bracing bar length/structural member type.
Bracing Size/Width – Specifies bracing bar Width/structural member size.
Bracing Thickness – Specifies bracing bar thickness.
Total Weight Area #
The Total Weight area includes the following data:
Columns – Column – Displays column’s main member weight.
Columns – Top – Displays column’s top detail weight.
Columns – Bottom – Displays column’s bottom detail weight.
Girder – Displays the girder’s weight.
Rafter – Displays rafter’s weight.
Structure Component – Displays miscellaneous structure component’s weight.
Rafter Calculations Area #
The Rafter Calculations area includes the following data:
Type – Specifies the rafter structural component type.
Size – Specifies the rafter structural component size.
Deflection, Allowable – Specifies rafter allowable deflection.
Deflection, Actual – Specifies rafter actual deflection.
Nominal Thickness, Required – Specifies rafter required nominal thickness.
Nominal Thickness, Actual – Specifies rafter actual nominal thickness.
Corroded Thickness, Required – Specifies rafter required corroded thickness.
Corroded Thickness, Actual – Specifies the rafter’s actual corroded thickness.
Sx, Required – Specifies rafter required section modulus.
Sx, New – Specifies rafter actual section modulus.
Sx, Corroded – Specifies rafter corroded section modulus.
R, Required – Specifies rafter required radius of gyration.
R, New – Specifies rafter actual radius of gyration.
R, Corroded – Specifies rafter corroded radius of gyration.
Bending Stress (LL + DL), Allowable – Specifies rafter allowable bending stress for the Live Load + Dead Load Case.
Bending Stress (LL + DL), Actual – Specifies rafter actual bending stress for the Live Load + Dead Load Case.
Bending Stress (DL), Allowable – Specifies rafter allowable bending stress for the Dead Load Only Case.
Bending Stress (DL), Actual – Specifies rafter actual bending stress for the Dead Load Only Case.
Check – Specifies rafter design check.
Girder Calculations Area #
The Girder Calculations area includes the following data:
Type – Specifies the girder structural component type.
Size – Specifies the girder structural component size.
Deflection, Allowable – Specifies girder allowable deflection.
Deflection, Actual – Specifies girder actual deflection.
Nominal Thickness, Required – Specifies girder required nominal thickness.
Nominal Thickness, Actual – Specifies the girder’s actual nominal thickness.
Corroded Thickness, Required – Specifies girder required corroded thickness.
Corroded Thickness, Actual – Specifies the girder’s actual corroded thickness.
Sx, Required – Specifies girder required section modulus.
Sx, New – Specifies girder actual section modulus.
Sx, Corroded – Specifies girder corroded section modulus.
R, Required – Specifies girder required radius of gyration.
R, New – Specifies girder’s actual radius of gyration.
R, Corroded – Specifies girder corroded radius of gyration.
Bending Stress (LL + DL), Allowable – Specifies girder allowable bending stress for the Live Load + Dead Load Case.
Bending Stress (LL + DL), Actual – Specifies girder’s actual bending stress for the Live Load + Dead Load Case.
Bending Stress (DL), Allowable – Specifies girder allowable bending stress for the Dead Load Only Case.
Bending Stress (DL), Actual – Specifies the girder’s actual bending stress for the Dead Load Only Case.
Check – Specifies rafter design check
Column Calculations Area #
The Column Calculations area includes the following data:
Type – Specifies the column structural component type.
Sub-Column Size 1 – Specifies the column’s first member structural component size.
Sub-Column Size 2 – Specifies the column’s second member structural component size.
Nominal Thickness, Required – Specifies column required nominal thickness.
Nominal Thickness, Actual – Specifies column actual nominal thickness.
Corroded Thickness, Required – Specifies column required corroded thickness.
Corroded Thickness, Actual – Specifies column’s actual corroded thickness.
Area, Required – Specifies column required section area.
Area, New – Specifies column actual section area.
Area, Corroded – Specifies column corroded section area.
R, Required – Specifies column required radius of gyration.
R, New – Specifies column actual radius of gyration.
R, Corroded – Specifies column corroded radius of gyration.
Bending Stress (LL + DL), Allowable – Specifies column allowable bending stress for the Live Load + Dead Load Case.
Bending Stress (LL + DL), Actual – Specifies column actual bending stress for the Live Load + Dead Load Case.
Bending Stress (DL), Allowable – Specifies column allowable bending stress for the Dead Load Only Case.
Bending Stress (DL), Actual – Specifies column actual bending stress for the Dead Load Only Case.
Check – Specifies rafter design check
Commands Area #
The Commands area includes the following buttons:
Set Standard Values – Set standard values for all structural elements. Standard values are defined in the Options file. Set minimum values for the standard configuration that passes the design checks.
Set Min Values – Set minimum values for the current configuration that pass the design checks.
Import Default Button – Import default structural bays configuration.
Export Default Button – Export default structural bays configuration.
Import Button – Import structural bays configuration from a file.
Export Button – Export structural bays configuration into a file.
Cancel Button – Exit window without performing changes.
OK Button – Exit window saving changes.
